xF2 Add-on [TH] Install and Upgrade 1.1.7

Changes:

• Added basic XF API endpoints
• Resolved theme quick upgrade button linking to wrong page
• Resolved issue when retrieving latest version of some styles

Changes:

• Added WMTech Handler.
• Fixed wrong page navigation links on Install & Upgrade log pages.

Changes:

• Resolved an issue that triggered a 403 authentication failed error when performing I&U actions on xenforo.com/community.

Changes:

• Resolved a visual bug that would show a 0 instead of a version ID for non-connected styles.
• Resolved an issue that would prevent styles from being installable in the latest release.
• Resolved an error that would happen if a profile was deleted while installations or upgrades for it were pending.
• Resolved an error that would happen if update information APIs were temporarily out of service.

Changes:

• Resolved an issue that would prevent the style upgrade button from working correctly.
• Resolved an issue that would prevent update check cron jobs from completing upon error.
• Added an icon to indicate which add-ons, styles and languages are linked to Install & Upgrade to ACP add-on, style and language lists.
• Added an option to skip import checks on style import.
• Improved ACP info querying to avoid N+1 query behavior on ACP index and add-on list pages.
• Added a new Atelier Aphelion Install & Upgrade handler.
• Resolved an issue that could prevent certain CLI commands from working properly and cause them to get stuck.

Changes:

• Added a number of developer-focused CLI commands.
• Fixed a number of assorted issues potentially affecting installation/upgrade/uninstallation process.
• Resolved an error potentially showing up when fetching the ThemeHouse product list.

Bugs fixed:

• Assorted template fixes